Rockwell-automation Ethernet Design Considerations Reference Manual Manual de usuario descargar pdf (Pagina 90)

90 Rockwell Automation Publication ENET-RM002C-EN-P - May 2013

Chapter 5 Predict System Performance

Example: Predict System

Performance

This example ControlLogix system has the following components:

• 1756-L73 controller in chassis 1 that executes these tasks:

– Produces a tag that 1756-L73 controllers, in chassis 2 and 3 respectively,

consume at an RPI = 20 ms

– Controls remote I/O in chassis 4…8

• 1756-L73 controllers in chassis 2 and 3 consuming a tag from the

controller in chassis 1

• Eight 1756-EN2T/A communication modules, firmware revision 2.003,

one module in each chassis

• Fifteen digital I/O modules with rack-optimized connections at an

RPI = 20 ms, 3 modules in each chassis 4…8

• Fifteen analog I/O modules across five remote chassis with direct

connections at an RPI = 50 ms, three modules in each chassis 4…8

• PanelView Plus terminal with a direct connection to an array of 40 tags at

an RPI = 100 ms and an explicit connection to an array of 100 tags sent

every 300 ms

• Workstation running FactoryTalk View SE software, requiring explicit

messaging of an array of 1500 tags every 100 ms. This workstation also

connects to the company Intranet

IMPORTANT

The information in the remainder of this section shows how to compute system

performance with ControlLogix controllers.

1 2 ... 85 86 87 88 89 90 91 92 93 94 95 ... 105 106

Sin comentarios

Rockwell-automation Ethernet Design Considerations Reference Manual Manual de usuario Pagina 90